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Texas Instruments CD74HC125M96
- Part No.:
- CD74HC125M96
- Manufacturer:
- Texas Instruments
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
CD74HC125M96.pdf
- Description:
- IC BUFFER NON-INVERT 6V 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:10,412
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Product details
Overview
CD74HC125M96 from Texas Instruments is a quadruple non-inverting buffer with 3-state outputs, designed for bus interface and signal routing in digital systems. It operates across 2 V to 6 V supply voltage, supports –55°C to +125°C temperature range, delivers propagation delay as low as 17 ns at 6 V (CL = 50 pF), and drives up to 10 LSTTL loads - enabling robust data enable control in industrial control backplanes.
For engineers reviewing the CD74HC125M96 datasheet, CD74HC125M96 pinout, CD74HC125M96 application, or CD74HC125M96 equivalent, key selection criteria include 3-state output timing (enable/disable delays ≤32 ns at 6 V), SOIC-14 package compatibility, wide-voltage rail operation, thermal performance (RθJA = 133.6°C/W), and CMOS input compatibility with TTL-level signals.
Technical Context
This device implements four independent positive-logic buffers (Y = A) with active-low 3-state enable inputs per channel. Each output exhibits balanced sourcing/sinking capability (±5.2 mA at 6 V), defined VOH/VOL under load, and controlled transition times (≤15 ns at 6 V).
Its 3-state architecture enables bidirectional bus isolation without external logic; functional modes are strictly governed by OE/A inputs per Table 8-1, with high-impedance state leakage limited to ±10 µA at 6 V over full temperature range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 2 V to 6 V - supports mixed-voltage system interfacing and battery-backed operation down to 2 V. |
| Propagation Delay | 17 ns max at 6 V (CL = 50 pF) - ensures sub-60-MHz bus timing margin in synchronous data paths. |
| Enable/Disable Delay | 21–32 ns max at 6 V (CL = 50 pF) - guarantees clean bus turn-on/turn-off without contention in shared-data applications. |
| Output Drive | ±5.2 mA at 6 V - sufficient to drive 10 LSTTL loads or light capacitive loads (<70 pF) without external buffering. |
| Operating Temperature | –55°C to +125°C - qualified for extended industrial, automotive under-hood, and aerospace environments. |
| Input Capacitance | 10 pF - minimizes loading on upstream drivers and preserves signal integrity in high-speed fanout networks. |
| 3-State Leakage | ±10 µA max at 6 V, –55°C to +125°C - ensures stable high-Z state during power-down or bus arbitration. |
Pinout & Package
CD74HC125M96 is housed in a 14-pin SOIC (D) package measuring 8.70 mm × 3.90 mm, with standard JEDEC MS-012AC footprint and Level-1 moisture sensitivity rating (260°C reflow compatible).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1OE, 2OE, 3OE, 4OE | Active-low enable input per channel | Asserting low enables corresponding Y output; high forces high-impedance state - critical for bus arbitration and power-gated subsystems. |
| 1A–4A | Buffer input per channel | CMOS-compatible input accepting 0–VCC logic levels; requires termination if unused to prevent floating states. |
| 1Y–4Y | Buffered 3-state output per channel | Drives downstream logic or bus lines; sinks/sources current only when enabled - eliminates bus contention during disable. |
| GND (Pin 7) | Ground reference | Primary return path for all I/O and supply currents; must be low-impedance to maintain noise immunity and timing stability. |
| VCC (Pin 14) | Positive supply | Power source for internal logic and output drivers; requires local 0.1-μF bypass capacitor to suppress switching transients. |
Key Features
| Feature | Design Value |
|---|---|
| Quadruple 3-state buffer architecture | Enables independent control of four signal paths - ideal for 4-bit parallel bus gating without discrete logic or multiplexers. |
| Balanced CMOS output drive | Sources and sinks equal current (±5.2 mA at 6 V), ensuring symmetrical rise/fall times and reduced ground bounce. |
| Wide supply voltage range (2–6 V) | Eliminates level-shifting requirements between 3.3 V microcontrollers and 5 V legacy peripherals or displays. |
| –55°C to +125°C operating range | Validated for deployment in harsh environments including motor drives, avionics, and outdoor infrastructure equipment. |
| Low ICC and IOZ leakage | Max 160 µA supply current and ±10 µA 3-state leakage - supports ultra-low-power sleep modes in battery-operated systems. |
Applications
| Industrial Bus Interface | Microcontroller Peripheral Expansion |
|---|---|
Use Scenario: Isolating multiple sensor modules on a shared RS-485 or CAN transceiver data bus during firmware updates. IC Role / Device Role / Timing Role: Acts as a digitally controlled bus gate, enabling/disabling sensor data flow via microcontroller GPIO-driven OE pins. Use Value: Prevents bus contention during hot-swap events and reduces standby current by placing unused channels in high-Z state. | Use Scenario: Expanding GPIO count of an ARM Cortex-M0+ MCU to drive eight discrete LEDs while sharing a common 3.3 V rail. IC Role / Device Role / Timing Role: Buffers and isolates MCU output pins from LED current loads, with 3-state outputs allowing dynamic reconfiguration of LED groups. Use Value: Eliminates need for discrete transistors or shift registers; leverages existing 3.3 V supply without level translation. |
| Legacy System Signal Conditioning | Test Equipment Digital Pattern Generation |
Use Scenario: Interfacing modern FPGA-based test controllers with vintage 5 V TTL instrumentation via shared data/address buses. IC Role / Device Role / Timing Role: Provides voltage-level tolerant buffering and bus direction control using OE-driven 3-state outputs. Use Value: Enables seamless integration without redesigning PCB layout or adding external level shifters. | Use Scenario: Generating synchronized 4-bit stimulus patterns for IC functional testing inside automated test equipment (ATE) racks. IC Role / Device Role / Timing Role: Delivers precise, low-skew buffered waveforms to DUT inputs, with independent OE control for pattern sequencing. Use Value: Achieves <15 ns output transition time and <32 ns enable delay - meeting tight setup/hold timing windows of high-speed logic devices. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar buffer-with-3-state-output applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74HC125N | Same logic function and electrical specs; packaged in PDIP-14 (19.30 mm × 6.40 mm) instead of SOIC-14. | Preferred for through-hole prototyping or legacy board repairs where SOIC footprint is unavailable. | Select SN74HC125N when manual soldering or socket-based validation is required; not suitable for surface-mount volume production. |
| 74LVC125APW | Lower VCC range (1.65–3.6 V), faster tpd (2.5 ns typical at 3.3 V), but rated only to +85°C ambient. | Optimized for portable, battery-powered 3.3 V systems requiring minimal propagation delay and lower static power. | Choose 74LVC125APW only for commercial-temperature consumer electronics; unsuitable for industrial or automotive use due to temperature limitation. |
Compared with SN74HC125N and 74LVC125APW, CD74HC125M96 uniquely combines extended temperature support (–55°C to +125°C), SOIC-14 surface-mount compatibility, and 2–6 V supply flexibility - making it the sole option for ruggedized, mixed-voltage, high-reliability embedded deployments.
Availability
CD74HC125M96 is available at Aetrix Electronics and suitable for industrial bus interface, microcontroller peripheral expansion, legacy system signal conditioning, and test equipment digital pattern generation requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for CD74HC125M96 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Texas Instruments is a global semiconductor leader delivering analog and embedded processing solutions, with over 90 years of innovation in precision analog, power management, and logic ICs.
CD74HC125M96 belongs to TI's HC (High-Speed CMOS) logic family, engineered for low-power, wide-voltage, high-noise-immunity digital interfacing in industrial, automotive, and aerospace systems.
FAQ
What is the maximum capacitive load CD74HC125M96 can drive while maintaining specified timing?
CD74HC125M96 is characterized for CL ≤ 50 pF in switching specifications, with optimal performance up to 70 pF. Driving >70 pF may increase propagation and enable/disable delays beyond datasheet limits and risk output ringing. For heavier loads, add a series resistor to limit peak current within ±20 mA absolute maximum ratings. The CD74HC125M96 datasheet specifies timing parameters only at 15 pF and 50 pF test conditions.
Can CD74HC125M96 operate reliably at 2.5 V supply voltage?
Yes, CD74HC125M96 is fully specified from 2 V to 6 V. At 2.5 V, VOH is guaranteed ≥2.4 V (IOH = –20 µA), VOL ≤0.1 V (IOL = 20 µA), and propagation delay is ≤150 ns (CL = 50 pF). Input thresholds scale proportionally: VIH ≥1.7 V and VIL ≤0.8 V. This makes CD74HC125M96 suitable for mixed 2.5 V/3.3 V system interfacing without level shifters.
How should unused inputs and outputs be handled on CD74HC125M96?
Unused inputs must be terminated to VCC or GND - never left floating - to prevent oscillation and excessive ICC. A 10-kΩ pull-up/down resistor is recommended for flexibility. Unused outputs may be left unconnected (floating) since they present no loading when disabled; however, avoid connecting them directly to VCC or GND. All four channels of CD74HC125M96 can be used independently, and proper termination applies to each unused pin individually.
Does CD74HC125M96 support hot insertion or live bus connection?
No, CD74HC125M96 does not include hot-swap protection features such as power-up 3-state or slew-rate control. Its inputs and outputs contain clamp diodes, but exceeding Absolute Maximum Ratings (e.g., VI > VCC + 0.5 V or VO < –0.5 V) risks damage. For live insertion, external series resistors and TVS diodes are required. The CD74HC125M96 design assumes stable power and signal rails before operation begins.
What is the thermal resistance (RθJA) of CD74HC125M96 in its SOIC-14 package?
The junction-to-ambient thermal resistance (RθJA) of CD74HC125M96 in SOIC-14 (D) package is 133.6°C/W, per TI's SCHS143D datasheet revision April 2021. This value assumes standard JEDEC 2-layer board conditions. Actual board-level RθJA depends on copper area, airflow, and adjacent heat sources. For continuous operation near maximum ICC (160 µA) and output loading, junction temperature remains well below 150°C limit even at +125°C ambient.
CD74HC125M96 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74HC
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Logic Type:
- Buffer, Non-Inverting
- Number of Elements:
- 4
- Number of Bits per Element:
- 1
- Input Type:
- -
- Output Type:
- 3-State
- Current - Output High, Low:
- 7.8mA, 7.8mA
- Voltage - Supply:
- 2V ~ 6V
- Operating Temperature:
- -55°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-SOIC
CD74HC125M96 FAQ
1.How can I place an order for CD74HC125M96 through Aetrix?
Please submit a Request for Quotation (RFQ) for CD74HC125M96 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for CD74HC125M96 reliable?
The price and inventory of CD74HC125M96 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CD74HC125M96 is usually 5 days.
3.What payment methods are accepted for CD74HC125M96?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CD74HC125M96 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CD74HC125M96?
CD74HC125M96 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CD74HC125M96 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for CD74HC125M96?
For technical support, including CD74HC125M96 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CD74HC125M96 requirements.
6.How does Aetrix verify that CD74HC125M96 is sourced from the original manufacturer or authorized distributors?
All CD74HC125M96 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that CD74HC125M96 meets industry standards.
7.What is the process for return or replacement of CD74HC125M96?
All CD74HC125M96 units undergo pre-shipment inspection (PSI). If there is an issue with CD74HC125M96, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The CD74HC125M96 part is unused and in its original packaging.
Return procedure for CD74HC125M96:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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